APC Basic Rack PDU AP9551
Nominal Output Voltage: 120VMaximum Total Current Draw per Phase: 20AOutput Connections: 14x NEMA 5-15RNominal Input Voltage: 100V, 120VInput Frequency: 50/60 Hz
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Overview of the APC Basic Rack PDU AP9551
The APC Basic Rack PDU AP9551 is a compact, zero‑U power distribution unit designed for data center and server rack environments. It delivers reliable 120 V AC power to up to fourteen equipment outlets while maintaining strict compliance with industry safety standards.
Key Physical Characteristics
- Dimensions: 44 mm × 44 mm × 620 mm (width × depth × height)
- Weight: 2,190 g (≈ 4.83 lb)
- Color: Black
- Mounting: Zero‑U rack mount with included mounting kit
Electrical Performance
- Input: 120 V AC, NEMA L5‑20P plug, 50/60 Hz frequency range
- Maximum Input Current per Phase: 20 A
- Load Capacity: 2,400 VA (2400 W at 120 V)
- Output: 14 NEMA 5‑15R receptacles, each rated for 120 V AC
- Cable Length: 3.66 m (12 ft) to accommodate rack layout flexibility
- Voltage Margin: Accepts input voltage from 90 V to 132 V AC
Environmental Specifications
- Operating Temperature Range: 0 °C to 45 °C (32 °F to 113 °F)
- Extended Temperature Tolerance: -25 °C to 65 °C (-13 °F to 149 °F) for brief excursions
- Relative Humidity: 5 % to 95 %
Safety and Compliance Certifications
The AP9551 meets rigorous safety standards, ensuring dependable operation in critical environments.
- UL 1363: Underwriters Laboratories certification for power distribution units
- cUL, CSA, and UL certifications: Canadian and U.S. safety compliance
Installation Guide
The APC Basic Rack PDU AP9551 is engineered for straightforward integration into existing rack systems.
- Mounting: Align the unit with the rack rails and secure using the provided mounting kit. The zero‑U design allows it to sit flush against the front of the rack, preserving valuable vertical space.
- Cable Management: Connect the 3.66 m power cable from the rack’s main distribution panel to the PDU’s NEMA L5‑20P input. Ensure the cable is routed cleanly to avoid strain on the connectors.
- Outlet Configuration: Arrange your server or networking equipment behind the fourteen NEMA 5‑15R outlets, taking care not to exceed the total load capacity of 2,400 VA.
Operational Tips
- Distribute power evenly across outlets to prevent localized overheating.
- Regularly inspect cable connections for signs of wear or corrosion.
- Use the PDU as part of a broader rack management strategy, pairing it with monitoring software if available.
Applications and Use Cases
The APC Basic Rack PDU AP9551 is ideal for a variety of scenarios where space efficiency and reliable power distribution are paramount.
- Data Centers: Provides a clean, organized power feed to servers, storage arrays, and networking gear.
- Enterprise Server Rooms: Supports high-density equipment while maintaining strict safety compliance.
- Telecommunications Infrastructure: Delivers stable 120 V AC to telecom switches and routers.
- Small‑to‑Medium Business (SMB) IT Environments: Offers a cost-effective solution for rack-mounted power needs without the bulk of larger PDUs.
Technical Support and Documentation
For detailed technical specifications, firmware updates, or troubleshooting guidance, consult the official APC documentation portal. The AP9551’s design adheres to industry best practices, ensuring long-term reliability in mission‑critical deployments.
Maintenance Checklist
- Verify that all outlet connections are secure and free of dust.
- Confirm that the unit remains within its specified temperature and humidity ranges.
- Check for any signs of electrical arcing or overheating at the input connector.
- Replace the power cable if it shows visible damage or excessive wear.
Conclusion
The APC Basic Rack PDU AP9551 delivers a blend of compact design, robust electrical performance, and stringent safety certifications. Its zero‑U mounting capability preserves rack space, while the fourteen NEMA 5‑15R outlets provide ample distribution points for a wide array of equipment. Whether you are building a new data center or upgrading an existing server room, this PDU offers dependable power management in a sleek, space‑saving package.
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| Identifiers | |
| Brand | ![]() APC is a brand that specializes in making high-quality, durable, and functional clothing and accessories for men and women. The brand is known for its simple and timeless designs, as well as its focus on quality and functionality. APC is a favorite among fashion-savvy individuals for its unique and stylish pieces. |
| Model | APC AP9551 |
| MPN | APC AP9551 |
| ID | 8601420 |
| Dimensions / Weight | |
| Key Features | |
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Cable length The linear distance that a cable covers, expressed with a length unit such as meters, centimeters or inches. It represents the total usable length of the cable for connecting devices.
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3.66 m |
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Certification A list of official certifications or compliance marks that the product has received from regulatory bodies, safety organizations, or industry standards groups. Each entry represents a distinct certification such as CE, FCC, RoHS, UL, or WEEE, and may include additional details like version numbers or specific test reports.
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cUL,CSA,UL 1363,UL |
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Colour The colour or combination of colours that a product is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the item for consumers.
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Black |
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Input connection type The type of electrical connector or inlet that a device uses to receive power, such as IEC C14, NEMA L6-20P, Schuko, or custom industrial plugs. It indicates the physical shape and pin configuration required for proper connection and compatibility with mains supplies.
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NEMA L5-20P |
| Input frequency | 50/60 Hz |
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Load capacity The maximum load that the product can safely support, expressed in a unit such as kilograms or pounds. The value may represent total capacity for the entire device or per drawer/section when applicable.
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2400 VA |
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Maximum input current per phase The maximum electrical current that a device can safely draw from each phase of its power supply, expressed in amperes (A). It indicates the highest current level the product is designed to handle per phase and helps users select compatible power sources and ensure safe operation.
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20 A |
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Nominal input voltage The electrical voltage that a product accepts from its power source, expressed in volts (V). It indicates the minimum and maximum supply voltages compatible with the device, covering both AC and DC inputs where applicable.
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120 V |
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Operating temperature range (T-T) The temperature interval, expressed in degrees Celsius (°C), within which a product can safely operate without risk of damage or performance degradation. Values may be presented as a single temperature, a minimum–maximum range (e.g., "0 - 70 °C"), or an average operating point.
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0 - 45 °C |
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Output connections The types and quantities of electrical outlets or connectors that a device provides for external equipment, such as power sockets (e.g., C13, C19, BS 1363) or other interface plugs. The value is expressed as a textual list indicating each connector type and the number of available ports.
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(14) NEMA 5-15R |
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Source data-sheet The website or platform from which the product data was obtained, typically a commercial catalog or manufacturer site. It indicates where the specifications and details were sourced for reference or verification purposes.
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Icecat.biz |
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Weight The mass of the product expressed in a standard unit such as grams or kilograms. It represents how heavy the item is and can be used for shipping calculations, handling instructions, or consumer information.
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2190 g |

